Authors: |
R. S. Jr..Smith, R. F. Scharpf, E. R. Schneegas |
Year: |
1965 |
Type: |
Research Note |
Station: |
Pacific Southwest Research Station |
Source: |
Res. Note PSW-RN-082. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station. 4 p |
Abstract
Widespread dieback of Purshia tridentata, on the Inyo National Forest in eastern California in the spring of 1964, was caused by a severe 3-day frost with daily minimums down to 13°F. An unusually warm 9-day period-with temperatures up to 70°F., which preceded the frost by a week, had induced the bitterbrush to break dormancy and start shoot elongation when the frost occurred. Damage to the bitterbrush caused reductions in the current range allotments. This is the first report of so severe a frost injury in this area.
Citation
Smith Jr., R. S.; Scharpf, R. F.; Schneegas, E. R. 1965. Frost injury to bitterbrush in eastern California. Res. Note PSW-RN-082. Berkeley, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Forest and Range Experiment Station. 4 p